Needing A Boot Disk

I am trying to install Slackware one of my old PC's. It appears that I have hosed up the partioning the hard drives so I need to get my hands on a boot disk. I have tried to make boot disks in the past using Windows XP. This has resulted in a boot disk that I can't use except with Windows XP. So I need an old DOS 6 boot disk. The web comes to my rescue again. The website Bootdisk.com has just what I am looking for.